Folding-machine.



R. BURN.

FOLDING MACHINE.

ABPLIGATION FILED NOV.16 1911. 1;@56532@ atented Mar. 18, l93.

5 SHEETS-.SHEET 1 R.BURN.

FOLDING MACHINE.

APPLICATION FILED NU\",1l, 1911V gygggm Patented Maz: 18,1913.

5 SHEETS-SHEET L?.

R. BURN.

FOLDING MACHINE.

APPLIUATION FILED NOVA 1G, 19M.

miente@ 38,

5 BHEETSASEEET R. BURN.

FOLDING MACHINE.

APPLmAToN FILED 11017.15, 1911.

LBSQ Patented Mar. 18, 1913,

5 SHEETS-SHEET 5.

31S v Sneccation of Letters Eatent.

q y ,4 .A

Application filed Novem-ber "i6, 19H.

Patented lidar. 18, lgl.

Serial lilo. 360,634.

ince of liilellii gtoAA ano orninion of New .z'ileaitnnh ze invented ev.' and useful :iinprovemer in vFold-ingdtlaclnnes, of which the Stoll g is a s cuestion T his invention relatJ a machine that o has designed for use in folding telegrains. statements., memoranda or other despiden torres.

i IBefore referring to 'the invention, it will he explained in what n'ianner the torni is to he iolded. This is done by first doubling over the bottoni -qn-arter of the depth of the sheet and tiirning its 'fseein againstthe front of snrli sheet; hen folding along the middle line of tlie sheet and turning the doubled por on in against the Yiront face of the sheet; -tlien folding the top quarter of the sheet backward so that its hack will lie inst the hack of the already folded porsnd 'clins complete a four fold of the with the front face of the top quarter 'iter this the tivo ends of ne folded forni are turned hack so to .ie against the. hack ot the folds and arA led in order to prevent the form unfold i o effect-the sealing. it. has heen proposed 'to forni the sheet with a pair of extensions or tabs having ginnn'ied haces and projecting laterally. one troni either side of the upper or address portion. ln lieu ot this arrangeinein it has heen proposed to provide a. central tal) extending upwardly from thje upper edge or". the sheet. or again tabs or stickers may ne fed in or severed troni a roll at the required moment. but it mustloe understrmd that no means or method toi-ins any part ot 'die present` invention, although the means hereinafter described will serve eil'erively to press any sealing means down so as to adhere to the folded sheet.

Briefly the operation of the invention is as tolloivsz-The sheet is received upon a table. forming the upper side of the machine and is engaged h v a downwardly operating blade. which. carrying it through a slot forms the first or lower told. The continuation ot the movement places such Jfolded portion ot the sheet upon an upwardly disposed former et special construction, which is supported upon a carriage provided with a pair or" laterally extending trennions journaled in the sides of the casing. By this arrangement the carriage may be turned upon its said axis so as to deflect tl e former eitllrer forwardly or rearwardly. The second and third folds are then accomplished toy detlecting the said former rearwardly, at 'which stage the rear face of the sheet is engaged by the forward stroke of a. second blade. The former is then deected in a forwardly direction, during which movement the -t-'Wo end portions of the folded sheet are doubled back unen the main portion thereof iov .n special action of the former itself. d. special extracting device novi7 cornes into operotion and withdraws the folded sheet from the former and in doing so presses the olds and delivers such sheet ready tor despetcli, Without inclosing in an envelop.

In order that the nature of the invention may be fully understood, reference will now be made to the accompanying sheet of drawings in Whicht Figure l.- is a perspective view of italie outside of the machine7 Fig. 2.- is a perspective view of the saine with the cover reinoved and so placed as to show the internal parts in assembly, Fig. 3.-# isan .enlarged detail ,'vieiv showing in Aperspective che former with its plates in the act of sWinginO upon Vtheir spindles, Fig. is a-nfenlarge detail of the ineans for obtaining the asiel4 movement of the former. Fig. 5.- showsin enlarged detail, the actuating means forithe ejector, Fig. 6.- is an enlarged detail view illustrating the operation of the second folding blade. Fig. 7.- is an enlargedideteil view showing the inountingand method of operating the first oldino blade,`-Figs. 8 `to 1l.- illnst-rate the working of the ejector, Fig. l2 shows the means 'for rotating the pressure rolls. Fig. l3.- illustra-tes the inethod of operating the ejector. lligs. lll to 17.- are. diagrams illustrating in sectional elevation the method of forming the ouarter folds, and Figs. 18 and 19.- ere diagrams, arranged planvvise, showing the method ol forming the end folds.

, l is a fran'ieivork or casing comprising a pair oi' side plates 2 and 3 and a /pair of end plates l and The upper side of the casing is inclosed bv a plate 6 constituting a table upon which the sheetl 7 is laid with its Writiten side uppermostl and With its address portion toward the rear 0r end plate 5.0i1 the im-Hwy suppormq upon Sald mais und upm -Y he sf is fdd/(1, of means fm wm- '.nony whereof El have signed my heet from iba; nume in ihs speclaffaon in h@ presence of Q JAL ivf@ subaac'iyny wfi'iuwsesi 'am the :ffm-wm@ edge gfppers keyed. upon il gppas' l Y crank so as to 

